diff --git a/TestON/drivers/common/clidriver.py b/TestON/drivers/common/clidriver.py
index 878839e..55ff522 100644
--- a/TestON/drivers/common/clidriver.py
+++ b/TestON/drivers/common/clidriver.py
@@ -1,15 +1,15 @@
 #!/usr/bin/env python
-'''
+"""
 Created on 24-Oct-2012
-    
-@authors: Anil Kumar (anilkumar.s@paxterrasolutions.com),
-          Raghav Kashyap(raghavkashyap@paxterrasolutions.com)
+
+author:s: Anil Kumar ( anilkumar.s@paxterrasolutions.com ),
+          Raghav Kashyap( raghavkashyap@paxterrasolutions.com )
 
 
     TestON is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 2 of the License, or
-    (at your option) any later version.
+    ( at your option ) any later version.
 
     TestON is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -17,78 +17,117 @@
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with TestON.  If not, see <http://www.gnu.org/licenses/>.		
+    along with TestON.  If not, see <http://www.gnu.org/licenses/>.
 
 
-          
-'''
+
+"""
 import pexpect
-import struct, fcntl, os, sys, signal
-import sys, re
-sys.path.append("../")
+import struct
+import fcntl
+import os
+import sys
+import signal
+import sys
+import re
+sys.path.append( "../" )
 
 from drivers.component import Component
-class CLI(Component):
-    '''
+
+
+class CLI( Component ):
+
+    """
         This will define common functions for CLI included.
-    '''
-    def __init__(self):
-        super(Component, self).__init__()
-        
-    def connect(self,**connectargs):
-        '''
+    """
+    def __init__( self ):
+        super( Component, self ).__init__()
+
+    def connect( self, **connectargs ):
+        """
            Connection will establish to the remote host using ssh.
            It will take user_name ,ip_address and password as arguments<br>
-           and will return the handle. 
-        '''
+           and will return the handle.
+        """
         for key in connectargs:
-            vars(self)[key] = connectargs[key]
+            vars( self )[ key ] = connectargs[ key ]
 
-        connect_result = super(CLI, self).connect()
+        connect_result = super( CLI, self ).connect()
         ssh_newkey = 'Are you sure you want to continue connecting'
-        refused = "ssh: connect to host "+self.ip_address+" port 22: Connection refused"
+        refused = "ssh: connect to host " + \
+            self.ip_address + " port 22: Connection refused"
         if self.port:
-            self.handle =pexpect.spawn('ssh -p '+self.port+' '+self.user_name+'@'+self.ip_address, env = {"TERM": "vt100"} , maxread=50000)
-        else :
-            self.handle =pexpect.spawn('ssh -X '+self.user_name+'@'+self.ip_address,maxread=1000000,timeout=60)
+            self.handle = pexpect.spawn(
+                'ssh -p ' +
+                self.port +
+                ' ' +
+                self.user_name +
+                '@' +
+                self.ip_address,
+                env={
+                    "TERM": "vt100" },
+                maxread=50000 )
+        else:
+            self.handle = pexpect.spawn(
+                'ssh -X ' +
+                self.user_name +
+                '@' +
+                self.ip_address,
+                maxread=1000000,
+                timeout=60 )
 
         self.handle.logfile = self.logfile_handler
-	i = 5
-	while i == 5:
-	    i=self.handle.expect([ssh_newkey,'password:',pexpect.EOF,pexpect.TIMEOUT,refused,'teston>','>|#|\$'],120)
-	    if i==0:
-	        main.log.info("ssh key confirmation received, send yes")
-	        self.handle.sendline('yes')
-	        i=self.handle.expect([ssh_newkey,'password:',pexpect.EOF])
-	    if i==1:
-	        main.log.info("ssh connection asked for password, gave password")
-	        self.handle.sendline(self.pwd)
-	        self.handle.expect('>|#|\$')
-	    elif i==2:
-	        main.log.error("Connection timeout")
-	        return main.FALSE
-	    elif i==3: #timeout
-	        main.log.error("No route to the Host "+self.user_name+"@"+self.ip_address)
-	        return main.FALSE
-	    elif i==4:
-	        main.log.error("ssh: connect to host "+self.ip_address+" port 22: Connection refused")
-	        return main.FALSE
-	    elif i==6:
-	        main.log.info("Password not required logged in")
+        i = 5
+        while i == 5:
+            i = self.handle.expect( [
+				    ssh_newkey,
+                                    'password:',
+                                    pexpect.EOF,
+                                    pexpect.TIMEOUT,
+                                    refused,
+                                    'teston>',
+                                    '>|#|\$' ],
+                		    120 )
+            if i == 0:
+                main.log.info( "ssh key confirmation received, send yes" )
+                self.handle.sendline( 'yes' )
+                i = self.handle.expect(
+                    [ ssh_newkey, 'password:', pexpect.EOF ] )
+            if i == 1:
+                main.log.info(
+                    "ssh connection asked for password, gave password" )
+                self.handle.sendline( self.pwd )
+                self.handle.expect( '>|#|\$' )
+            elif i == 2:
+                main.log.error( "Connection timeout" )
+                return main.FALSE
+            elif i == 3:  # timeout
+                main.log.error(
+                    "No route to the Host " +
+                    self.user_name +
+                    "@" +
+                    self.ip_address )
+                return main.FALSE
+            elif i == 4:
+                main.log.error(
+                    "ssh: connect to host " +
+                    self.ip_address +
+                    " port 22: Connection refused" )
+                return main.FALSE
+            elif i == 6:
+                main.log.info( "Password not required logged in" )
 
-        self.handle.sendline("")
-        self.handle.expect('>|#|\$')
+        self.handle.sendline( "" )
+        self.handle.expect( '>|#|\$' )
         return self.handle
 
-    
-    def disconnect(self):
-        result = super(CLI, self).disconnect(self)
+    def disconnect( self ):
+        result = super( CLI, self ).disconnect( self )
         result = main.TRUE
-        #self.execute(cmd="exit",timeout=120,prompt="(.*)")
-    
-    
-    def execute(self, **execparams):
-        '''
+        # self.execute( cmd="exit",timeout=120,prompt="(.*)" )
+
+    def execute( self, **execparams ):
+        """
         It facilitates the command line execution of a given command. It has arguments as :
         cmd => represents command to be executed,
         prompt => represents expect command prompt or output,
@@ -96,127 +135,171 @@
         more => to provide a key press if it is on.
 
         It will return output of command exection.
-        '''
-
-        result = super(CLI, self).execute(self)
+        """
+        result = super( CLI, self ).execute( self )
         defaultPrompt = '.*[$>\#]'
-        args = utilities.parse_args(["CMD", "TIMEOUT", "PROMPT", "MORE"], **execparams)
-        expectPrompt = args["PROMPT"] if args["PROMPT"] else defaultPrompt
+        args = utilities.parse_args( [
+				     "CMD",
+                                     "TIMEOUT",
+                                     "PROMPT",
+                                     "MORE" ],
+            			     **execparams )
+
+        expectPrompt = args[ "PROMPT" ] if args[ "PROMPT" ] else defaultPrompt
         self.LASTRSP = ""
-        timeoutVar = args["TIMEOUT"] if args["TIMEOUT"] else 10
+        timeoutVar = args[ "TIMEOUT" ] if args[ "TIMEOUT" ] else 10
         cmd = ''
-        if args["CMD"]:
-            cmd = args["CMD"]
-        else :
+        if args[ "CMD" ]:
+            cmd = args[ "CMD" ]
+        else:
             return 0
-        if args["MORE"] == None:
-            args["MORE"] = " "
-        self.handle.sendline(cmd)
+        if args[ "MORE" ] is None:
+            args[ "MORE" ] = " "
+        self.handle.sendline( cmd )
         self.lastCommand = cmd
-        index = self.handle.expect([expectPrompt, "--More--", 'Command not found.', pexpect.TIMEOUT,"^:$"], timeout = timeoutVar)
+        index = self.handle.expect( [
+				    expectPrompt,
+                                    "--More--",
+                                    'Command not found.',
+                                    pexpect.TIMEOUT,
+                                    "^:$" ],
+            			    timeout=timeoutVar )
         if index == 0:
-            self.LASTRSP = self.LASTRSP + self.handle.before + self.handle.after
-            main.log.info("Executed :"+str(cmd)+" \t\t Expected Prompt '"+ str(expectPrompt)+"' Found")
+            self.LASTRSP = self.LASTRSP + \
+                self.handle.before + self.handle.after
+            main.log.info(
+                "Executed :" + str(
+                    cmd ) + " \t\t Expected Prompt '" + str(
+                        expectPrompt) + "' Found" )
         elif index == 1:
             self.LASTRSP = self.LASTRSP + self.handle.before
-            self.handle.send(args["MORE"])
-            main.log.info("Found More screen to go , Sending a key to proceed")
-            indexMore = self.handle.expect(["--More--", expectPrompt], timeout = timeoutVar)
+            self.handle.send( args[ "MORE" ] )
+            main.log.info(
+                "Found More screen to go , Sending a key to proceed" )
+            indexMore = self.handle.expect(
+                [ "--More--", expectPrompt ], timeout=timeoutVar )
             while indexMore == 0:
-                main.log.info("Found anoother More screen to go , Sending a key to proceed")
-                self.handle.send(args["MORE"])
-                indexMore = self.handle.expect(["--More--", expectPrompt], timeout = timeoutVar)
+                main.log.info(
+                    "Found anoother More screen to go , Sending a key to proceed" )
+                self.handle.send( args[ "MORE" ] )
+                indexMore = self.handle.expect(
+                    [ "--More--", expectPrompt ], timeout=timeoutVar )
                 self.LASTRSP = self.LASTRSP + self.handle.before
-        elif index ==2:
-            main.log.error("Command not found")
+        elif index == 2:
+            main.log.error( "Command not found" )
             self.LASTRSP = self.LASTRSP + self.handle.before
-        elif index ==3:
-            main.log.error("Expected Prompt not found , Time Out!!") 
-            main.log.error( expectPrompt ) 
+        elif index == 3:
+            main.log.error( "Expected Prompt not found , Time Out!!" )
+            main.log.error( expectPrompt )
             return "Expected Prompt not found , Time Out!!"
-        
+
         elif index == 4:
             self.LASTRSP = self.LASTRSP + self.handle.before
-            #self.handle.send(args["MORE"])
-            self.handle.sendcontrol("D")
-            main.log.info("Found More screen to go , Sending a key to proceed")
-            indexMore = self.handle.expect(["^:$", expectPrompt], timeout = timeoutVar)
+            # self.handle.send( args[ "MORE" ] )
+            self.handle.sendcontrol( "D" )
+            main.log.info(
+                "Found More screen to go , Sending a key to proceed" )
+            indexMore = self.handle.expect(
+                [ "^:$", expectPrompt ], timeout=timeoutVar )
             while indexMore == 0:
-                main.log.info("Found another More screen to go , Sending a key to proceed")
-                self.handle.sendcontrol("D")
-                indexMore = self.handle.expect(["^:$", expectPrompt], timeout = timeoutVar)
+                main.log.info(
+                    "Found another More screen to go , Sending a key to proceed" )
+                self.handle.sendcontrol( "D" )
+                indexMore = self.handle.expect(
+                    [ "^:$", expectPrompt ], timeout=timeoutVar )
                 self.LASTRSP = self.LASTRSP + self.handle.before
-        
-        main.last_response = self.remove_contol_chars(self.LASTRSP)
+
+        main.last_response = self.remove_contol_chars( self.LASTRSP )
         return self.LASTRSP
-    
-    def remove_contol_chars(self,response):
-        #RE_XML_ILLEGAL = '([\u0000-\u0008\u000b-\u000c\u000e-\u001f\ufffe-\uffff])|([%s-%s][^%s-%s])|([^%s-%s][%s-%s])|([%s-%s]$)|(^[%s-%s])'%(unichr(0xd800),unichr(0xdbff),unichr(0xdc00),unichr(0xdfff),unichr(0xd800),unichr(0xdbff),unichr(0xdc00),unichr(0xdfff),unichr(0xd800),unichr(0xdbff),unichr(0xdc00),unichr(0xdfff))  
-        #response = re.sub(RE_XML_ILLEGAL, "\n", response) 
-        response = re.sub(r"[\x01-\x1F\x7F]", "", response)
-        #response = re.sub(r"\[\d+\;1H", "\n", response)
-        response = re.sub(r"\[\d+\;\d+H", "", response)
+
+    def remove_contol_chars( self, response ):
+        # RE_XML_ILLEGAL = '([\u0000-\u0008\u000b-\u000c\u000e-\u001f\ufffe-\uffff])|([%s-%s][^%s-%s])|([^%s-%s][%s-%s])|([%s-%s]$)|(^[%s-%s])'%( unichr( 0xd800 ),unichr( 0xdbff ),unichr( 0xdc00 ),unichr( 0xdfff ),unichr( 0xd800 ),unichr( 0xdbff ),unichr( 0xdc00 ),unichr( 0xdfff ),unichr( 0xd800 ),unichr( 0xdbff ),unichr( 0xdc00 ),unichr( 0xdfff ) )
+        # response = re.sub( RE_XML_ILLEGAL, "\n", response )
+        response = re.sub( r"[\x01-\x1F\x7F]", "", response )
+        # response = re.sub( r"\[\d+\;1H", "\n", response )
+        response = re.sub( r"\[\d+\;\d+H", "", response )
         return response
-        
-    def runAsSudoUser(self,handle,pwd,default):
-        
-        i = handle.expect([".ssword:*",default, pexpect.EOF])
-        if i==0:
-            handle.sendline(pwd)
-            handle.sendline("\r")
 
-        if i==1:
-            handle.expect(default)
-        
-        if i==2:
-            main.log.error("Unable to run as Sudo user")
-            
+    def runAsSudoUser( self, handle, pwd, default ):
+
+        i = handle.expect( [ ".ssword:*", default, pexpect.EOF ] )
+        if i == 0:
+            handle.sendline( pwd )
+            handle.sendline( "\r" )
+
+        if i == 1:
+            handle.expect( default )
+
+        if i == 2:
+            main.log.error( "Unable to run as Sudo user" )
+
         return handle
-        
-    def onfail(self):
-        if main.componentDictionary[self.name].has_key('onfail'):
-            commandList = main.componentDictionary[self.name]['onfail'].split(",")
-            for command in commandList :
-                response = self.execute(cmd=command,prompt="(.*)",timeout=120)
 
-    def secureCopy(self,user_name, ip_address,filepath, pwd,dst_path):
-        
-        #scp openflow@192.168.56.101:/home/openflow/sample /home/paxterra/Desktop/
+    def onfail( self ):
+        if 'onfail' in main.componentDictionary[ self.name ]:
+            commandList = main.componentDictionary[
+                self.name ][ 'onfail' ].split( "," )
+            for command in commandList:
+                response = self.execute(
+                    cmd=command,
+                    prompt="(.*)",
+                    timeout=120 )
 
-        '''
+    def secureCopy( self, user_name, ip_address, filepath, pwd, dst_path ):
+
+        # scp openflow@192.168.56.101:/home/openflow/sample
+        # /home/paxterra/Desktop/
+        """
            Connection will establish to the remote host using ssh.
            It will take user_name ,ip_address and password as arguments<br>
-           and will return the handle. 
-        '''
+           and will return the handle.
+        """
         ssh_newkey = 'Are you sure you want to continue connecting'
-        refused = "ssh: connect to host "+ip_address+" port 22: Connection refused"
-        cmd = 'scp '+str(user_name)+'@'+str(ip_address)+':'+str(filepath)+' '+str(dst_path)
-        main.log.info("Sending: " + cmd )
-        self.handle =pexpect.spawn( cmd )
-        i=self.handle.expect([ssh_newkey,'password:',pexpect.EOF,pexpect.TIMEOUT,refused],120)
+        refused = "ssh: connect to host " + \
+            ip_address + " port 22: Connection refused"
         
-        if i==0:    
-            main.log.info("ssh key confirmation received, send yes")
-            self.handle.sendline('yes')
-            i=self.handle.expect([ssh_newkey,'password:',pexpect.EOF])
-        if i==1:
-            main.log.info("ssh connection asked for password, gave password")
-            self.handle.sendline(pwd)
-            #self.handle.expect(user_name)
-            
-        elif i==2:
-            main.log.error("Connection timeout")
+	cmd = 'scp ' + str( user_name ) + '@' + str( ip_address ) + ':' + \
+	      str( filepath ) + ' ' + str(dst_path )
+
+        main.log.info( "Sending: " + cmd )
+        self.handle = pexpect.spawn( cmd )
+        i = self.handle.expect( [
+				ssh_newkey,
+                              	'password:',
+                              	pexpect.EOF,
+                              	pexpect.TIMEOUT,
+                              	refused ],
+            			120 )
+
+        if i == 0:
+            main.log.info( "ssh key confirmation received, send yes" )
+            self.handle.sendline( 'yes' )
+            i = self.handle.expect( [ ssh_newkey, 'password:', pexpect.EOF ] )
+        if i == 1:
+            main.log.info( "ssh connection asked for password, gave password" )
+            self.handle.sendline( pwd )
+            # self.handle.expect( user_name )
+
+        elif i == 2:
+            main.log.error( "Connection timeout" )
             pass
-        elif i==3: #timeout
-            main.log.error("No route to the Host "+user_name+"@"+ip_address)
+        elif i == 3:  # timeout
+            main.log.error(
+                "No route to the Host " +
+                user_name +
+                "@" +
+                ip_address )
             return main.FALSE
-        elif i==4:
-            main.log.error("ssh: connect to host "+ip_address+" port 22: Connection refused")
+        elif i == 4:
+            main.log.error(
+                "ssh: connect to host " +
+                ip_address +
+                " port 22: Connection refused" )
             return main.FALSE
 
-        self.handle.sendline("")
-        self.handle.expect("$")
+        self.handle.sendline( "" )
+        self.handle.expect( "$" )
         print self.handle.before
-        
+
         return self.handle
-    
+